Block-holding attachment for leather-cutting machines.



v 1. 0. McGUIRE. BLOCK HOLDING ATTACHMENT FOR LEATHER CUTTING MACHINES,

APPLICATION FILED MAY 27' 1916.

3 F'IGJL Patented Ma1'.6,l917. I

r the several views,

JAMES C. MCGUIRE, OF BRIDGEWATER, MASSACHUSETTS.

BLOCK-HOLDING ATTACHMENT FOR LEATHER-GUTTIN G MACHINES.

Application filed May 27, 1916.

To all whomitmay concern:

Be it known that I, J AMES C. MCGUIRE, a citizen of the United States, residing at Bridgewater, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Block-Holding Attachments for Leather- Cutting Machines; and I do hereby'declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertainsto make and use the same.

This invention relates to an attachment for sole, or leather cutting machines, and the primary object of the invention is to provide a substantially U-shaped barhaving depending wedge shaped lugs formed upon the ends of its legs for insertion-in recesses formed in the bed plate of a sole or leather cutting machine for holding the die blocks against accidental longitudinal or lateral movement, thereby eliminating the necessity of tying the die blocks to the bed plate or frame of the cutting machine by ropes, or other similar material for preventing the longitudinal sliding or slipping movement'of the die blocks and their inter ference with the working parts of the machine. i

With the foregoing and other objects in view this invention consists in such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing and claimed.

In describing the invention in detail reference will be had to the accompanying drawing wherein like characters designate like and corresponding parts throughout and in which Figure l is a side elevation of a beam cutter for leather or other analogous material, showing the invention applied thereto.

Fig. 2 is a fragmentary perspective of the bed plate of the cutter showing the invention applied thereto.

Fig. 3 is a detail perspective of the block holding attachment, and

Fig. 4 is a section on the line 44 of Fig. 3.

Referring more particularly to the drawing, 1 designates a beam cutting machine, for leather or analogous materials, of ordinary construction which includes a bed plate 2 and av die block 3 of ordinary con- Specification of Letters Patent.

Patented Mar. 6, 1917. Serial No. 100,275.

struction, which die block rests upon the upper surface of the bed plate 2. In the operation of the cutting machine, the vibration causes the die block 3 to slip or move longitudinally along the upper surface of the bed plate 2, and to prevent this movement which often interferes with the operation of the machine, the improved holding clamp illustrated in Fig. 3 and indicated by the numeral 5 is provided.

The block holding clamp 5 is constructed of metal or analogous material and comprises a substantially U-shaped body portion having a bight portion 6 and legs 7 and 8. The legs 7 and-8 have depending Wedge I shaped lugs 9 formed upon their outer free ends and depending from their under surfaces. The outer side of the free ends of the legs overhang. the outer surfaces of the -wedge shaped blocks 9. The wedge shaped provided for seating the sockblocks 9 are ets 10 which are formed in the bed plate 2 of the cutter and ordinarily receive the usual form of wedges employed for holding the die blocks in place. The legs 7 and 8 of the block holder 5 extend along the upper surface of the bed 6 extends transversely across the upper surface of the bed plate at one end of the same. The inner surfaces of the legs 7 and 8 and of the bight portion 6 engage the lower portion of the die block, and hold this die block against accidental longitudinal or lateral movement upon the surface of the bed plate, thereby eliminating the liability of its slipping out of place during the operation of the machine and interfering with the working parts of the same.

In applying the improved block holding attachment to the leather cutting machine, one of the attachments are mounted upon the upper surface of each 'end of the bed plate 2 for engagement with each end of the die block 3 as indicated in Fig. 1 of the drawing.

.In reducing the invention to practice, certain minor features of construction, combination and arrangement of parts may necessitate alterations to which the patentee is entitled provided such alterations are comprehended within the scope of what is claimed.

What is claimed is 1. The combination with an ordinary leather cutting machine including a. bed plate and a die block removably mounted plate and the bight portion upon said bed plate, of a substantially U- shaped bar mounted upon the upper surface of said bed plate and having the inner surfaces of its legs and bight portion engaging portions of the sides and end of said die block, and means for connecting said bar to said bed plate for preventing accidental movement of the die block upon the said plate.

2. The combination With an ordinary leather cutting machine including a bed plate having sockets formed therein and a die block removably mounted upon said bed plate, of a substantially U-shaped member mounted upon the upper surface of said bed plate and having the inner surfaces of Copies of this patent may be obtained for JAMES C. MOGUIRE.

Witnesses:

EDWARD A. MAoMAs'rER, FRANK B. LENARD.

five cents each, by addressing the Commissioner of Patents Washington, D. G. 

